Explanation/Reference:
References:
https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/ipconfig

169.254.48.97 is an APIPA address. An APIPA address is used when the DHCP server is not available.

Media contention occurs when two or more network devices have data to send at the same time.
Because multiple devices cannot talk on the network simultaneously, some type of method must be used to allow one device access to the network media at a time. This is done in two main ways: carrier sense multiple access collision detect (CSMA/CD) and token passing.

Explanation/Reference:
To install the Routing and Remote Access service
1. In the Server Manager main window, under Roles Summary, click Add roles.
-- OR --
In the Initial Configuration Tasks window, under Customize This Server, click Add roles.
2. In the Add Roles Wizard, click Next.
3. In the list of server roles, select Network Policy and Access Services. Click Next twice.
4. In the list of role services, select Routing and Remote Access Services to select all of the role services.
You can also select individual server roles.
5. Proceed through the steps in the Add Roles Wizard to complete the installation.
Reference: Install and Enable the Routing and Remote Access Service